Carrier for braiding-machines.



w. H. JOSLlN. CARRIER FOR BRAIDING MACHINES.

APPLICATION FILED FEB-12,1914.

1,137,490, Patented Apr. 27, 1915.

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CARRIER FOR BRAIDING-MACHINES.

Specification of Letters Patent.

Patented Apr. 27, 11915.

Application filed February 12, 1914. Serial No. 818,373.

To all whom it may concern:

Be it known that 1, WILLIAM H. JosLrN, a citizen of the United States, and resident of the city of Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Carriers for Braiding-Machines, of which the following is a specification.

This invention relates to carriers for braiding machines, the same being an improvement on patent numbered 7 27 ,926.

This invention has for its object to provide means in the carrier whereby the running speed of the braider may be greatly increased over braiders using the old style carrier, said means including essentially an improved construction of slidable tension weight having an upwardly extending guiding and friction lip for engaging the front face of the latch body first, to prevent the same from tipping forward when raised from engagement with the spool ratchet, and second, to provide a roughened engaging surface on said lip whereby the latch is prevented from being unnecessarily thrown beyond the point to which the weight is raised and also when the tension weight drops after raising the latch, it will have a tendency to somewhat adhere to and draw with it, and accelerate the dropping action of the latch, to hasten its ree'ngagement with the ratchet teeth on the spool to better control and more effectually prevent excessive unwinding of the yarn therefrom.

The invention further consists in providing a cooperating downwardly extending lip on the rear of the latch body to engage the rear side of the weight as it is raised to at once straighten both the weight and latch on the standard preventing them from cramping thereon and thus reducing the sliding friction of both. This inter-engaging construction of the latch and weight causes the weight to act upon and prevent the latch from being thrown up beyond the point where the weight is raised and also to further assist the latch to return quickly into engagement with the teeth in the spool.

A further object of the invention is to provide yarn guiding means in the front wall of the tension weight, the same being located at a point below the upper edge of the body portion or adjacent to or below the middle portion of said weight, or as near the lower edge thereofas possible, the only limit being the cutting away of the ex treme lower edge of the front wall of the weight in the present construction to permit its being positioned on the standard whereby by the positioning of this guide near usual outer lower edge of the weight and out through the usual lead eye in the top of the standard by which construction a double acting slack take-up effect for the yarn is provided to prevent excessive'slack even should it occur from snarling or breaking down the end and stopping the machine, and also to prevent excessive slack from permitting the tension weight to drop sufiiciently low to engage the knock-off and stop the machine.

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described and particularly pointed out in the appended claims.

Of the accompanying drawings: Figure 1- is a side elevation of the carrier, partly in section illustrating the tension weight as part-way down, and also illustrating the double take-up action on the yarn. Fig. 2 is a side elevation showing the tension weight as raised in position to engage the front face of the body portion of the latch and preventthe same from tipping forward when disengaged from the teeth of the spool and also to assist in accelerating its dropping action. Fig. 3 is a detail front view of my improved tension weight. Fig. 4t is a top view of this tension weight. Fig. 5- is a sectional side elevation of a portion of the tension weight illustrating the roughened engaging surface therein. Fig. 6 is a rear view of the latch showing the engaging straightening and friction finger extending downward from the rear bottom edge thereof.

' It is found in the operation of the old style carriers, when running at high speed, that the ballooning 0f the yarn, a knot formed in the thread, an excessive jar of the ma chine, or other unusual pull on the yarn, causes a quick upward throw of the tension weight and also of thelatch, which some times permits the spool to rotate several teeth before the latch can again drop to catch it, and this unwinding action produces so much slackthat often times it will snarl,

limited. To obviate this serious difficulty I have provided an improved carrier, the same comprising a frame 10 having a groove 11 adapted to run and be guided in the usual raceway, said carrier frame being also provided with a spindle 12, on which the yarn spool 13 is mounted, the upper end or head 14: of the spool being provided with the usual- 7 ratchet teeth 15. This carrier frame is also provided with a standard 16, having a lead eye-17 in its upper end and a guide eye 18 near its middle. This standard is also provided atits upper end "with the 'usual forwardly projecting stop lip 19, and a narrow neck'portion20, which latter is formed for r the purpose of'permitting the tension weight and latch to be positioned on'the standard. Thelatch 21 is of the usual type having a body portion adapted to slide freely on the standard, but preferably somewhat more r is of a special construction, which is the reelongated than has heretofore been customary, and having a forwardly extending finger 22 adapted to engage the ratchet teeth onthehead of the spool. The tension weight sult .of long practical experience and experiment,'the same being provided with a body portion 23 adapted to slide freely on the standard and has a slotted opening 24: at the lower edge in its front wall, of a size to permit the weight to be passedover the narrow neck 20 and lead eye boss 31 onto the standard. This front wall is' provided with an eye or guiding edge 25 through, over, or around which the yarn ispassed. One of the essential features of this invention, is to place this guide as low in this wall as is possible and still leave suflicient opening therein to permit the weight being passed onto the standard. As it will be seen, the lower this guide is in this front wall the greater will be the amount of slack taken up when the weight falls, therefore I have provided a guide bar or bridge 32 located below the upper edge of the body portion of the weight and around the lower edge 25 of which the yarn is drawn, but any other suitable guiding'means may be provided for this purpose, the invention lying more particularly in the positioning of the guiding means relative to the middle or lower edge of the weight. The front wall of thisweight is also provided with an upwardly extending lip portion-26,

the inner surface 27 of which,'see 'Fig."5,-is

preferably roughened and 'is of a shape to correspond to that of the outer surface 28 of ,the latch', so thatwhen the Weight is in raised position, as illustrated in Fig.2, with its shoulder 34: abutting the lower edge 35 of the latch, the inner surface of this finger, due to the tension and inwardly tipping action of the portion 33 of the yarn, see Fig. 2, will engage the corresponding surface of the latch and thereby perform a double function. First, this lip supports the front of the latch and prevents the same fromtipping forward when thrown up out of engagement with the teeth of the spool, and second, the engaging surface of the finger. tends to act upon the latch so that the falling of the tension weight assists in promptly drawing down the latch into engagement with the spool to prevent undue. slack unwinding therefrom. It is found in practice that this tension weight should be graduated in size according to the strength of the yarn and the speed desired, therefore in somecases I cutout or remove a portion of the front wall as at 29, the opening depending somewhat on the amount ofstock to be removed to reduce the same to the required weightQ The invention further consists in the provision of a lip 36, see Figs. 1,2 and 6, connected to and extending downwardly from the rear lower edge of the body portion of the latch, which lip is arranged to engage the rear side or wall of the weight body when the latter is ascending under tension of the yarn to raise the latch, and by this engagement the weight, which naturally has a tendency to lean forward on the standard, being loosely mounted thereon, is straightened on the standard, thereby removing its binding tendency due to its angle or cant, and reducing its sliding friction on the standard to the minimum. Further, in practice, the latch naturaly fits very loosely on I the standard and after having run for some time becomes badly worn and therefore.

hangs on its pawl at considerable of an'angle j thereon, which out-of-alinement naturally creates excessive sliding friction rendering it more difficult forthe latch, either :to be raised, or to return promptly to operating position. My improved downwardly :eX- tending lip has the beneficial'eifect of remedying this inherent defect in the-action of the latch, as when this lip engages the rear portion of the weight it at once straightens the latch and brings it up into line with the axis of the standard, thereby rendering it much more easily raised, and this lip also serves as aguide to hold the latch'in this straightposition until it has again returned .into engagement with the ratchet teeth on the spool. A further beneficial effect of this rear lip is that its frictional engagement with the weight serves to coeperate with and quickly returning the latch into engagement with the spool.

In the operation of my improved invention the carrier is mounted and driven in the usual way in the machine. The spindle in the carrier supports the usual spool and the standard supports both the latch and the tension weight, the construction of the latter embodying the essential features of my present invention. In threading up the device the yarn 30 is carried from the spool down around the guide 25 in the front wall of the tension weight, the same being located at a point adjacent to or below the middle of the weight. It is found in practice that the lower this guide can be placed the better will be the result, the only limitation in this direction being the opening which must be left for the weight to pass over the narrow neck portion 20 onto the standard. After passing around this guide 25 the yarn is led up through the eye 18 in the standard, thence down around the bar 31 at the outer lower edge of the weight, thence out through the lead eyes 17 at the top of the standard. From this it will be seen that when the weight falls it will take up the slack of the yarn, on not only the outside of the standard, which is usual, but will also take up a similar quantity on the inside of the standard, thereby taking up double the quantity of the yarn by a single downward movement, over that of the weight of the usual type.

By my improved construction I obtain at least two distinct advantages over the old construction of carriers, first, the cooperation of the straightening and friction lips on the tension weight and latch to assist the latter to quickly return and prevent undue unwinding from the spool, and second, to provide means whereby substantially a double amount of yarn slack is taken up by the downward motion of this tension weight by means of which improvements I am enabled to increase the running speed of the carriers from approximately one hundred and fifty revolutions to between four and five hundred revolutions, which is a tremendous gain in the production and efficiency of each machine, the expense of construction being no more than that in the others.

I claim:

1. A carrier for braiding machines comprising a frame having a spool spindle and a standard, a slidable latch on said standard having a finger to engage the ratchet teeth on the spool, a yarn tension controlling weight also slidable on said standard and a downwardly extending member on (Topics of this patent may be obtained for five cents said latch adapted to over-lap said weight when the latter is raised for the purpose of straightening both of said sliding members on their standard.

2. A carrier for braiding machines comprising a frame having a spool spindle and a standard, a slidable latch on said standard having a finger to engage the ratchet teeth on the spool, a yarn tension controlling weight also slidable on said standard and a downwardly extending lip on the rear of said latch adapted to over-lap and embrace the body of said weight when the latter is raised to straighten both members on their standard.

3. A carrier for braiding machines comprising a frame having a spool spindle and a standard, a slidable latch on said standard having a finger to engage the ratchet teeth on the spool, a yarn tension controlling weight also slidable on said standard, a downwardly extending lip on the rear of said latch adapted to over-lap and embrace the body of said weight when the latter is raised and an upwardly extending lip on said weight having a roughened engaging face adapted to cooperate with said latch lip to pull downward the raised latch by frictional engagement therewith.

4. A carrier for braiding machines comprising a frame having a spool spindle and a standard, the latter having a guide eye near its middle and a lead eye near its upper end, a slidable latch on said standard having a body portion with a finger to engage the ratchet teeth on the spool, a downwardly extending weight engaging lip on said latch, a slidable tension weight on said standard comprising a main body portion having an upwardly extending guiding and friction lip adapted to engage the front face of said latch body, the rear portion of said weight being adapted to engage said latch lip, a yarn guide in the front wall of said weight at a point below the upper edge of said body, and a guide notch adjacent the lower edge of its outside wall whereby the yarn leads from the spool through said front eye thence through the guide eyes in the standard down around the outer lower edge of the weight and up through the lead eye whereby a double action slack take-up is provided.

In testimony whereof I atfix my signature in presence of two witnesses.

WILLIAM H. JOSLIN.

Witnesses HOWARD E. BARLOW,

E. I. OGDEN.

each, by addressing the Commissioner of Patents,

Washington, D. C. 

